Ensure a proper seal when installing your new thermostat
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Common source of coolant leaks around your thermostat
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Includes the plug, o-ring and securing clip
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Connects the T connector piece from the lower radiator hose to the thermostat housing
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Brand:
ES#:
315179
Mfg#:
1K0121051N
Ships in 2 Business Days
9% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$114.99
This product was last offered at the strikethrough price on 02-26-2026
Bypass pipe located underneath intake manifold. Designed to be the last water pipe you'll need to replace.
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Connects upper radiator hose to return line
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Keep proper pressure in your coolant system
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Brand:
ES#:
4818658
Mfg#:
5Q0121321
Ships in 1 Business Day
ON SALE!
SAVE 24%
$15.99
This product was last offered at the strikethrough price on 05-02-2026
Optimize your engine cooling system performance and heater output with quality drive belts, coolant hoses, cooling system parts, and approved coolant fluids from ECS Tuning. Head off expensive repairs and untimely breakdowns with regularly scheduled cooling system inspection and maintenance.
Lifetime Replacement
